21095912

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{857}}^1$

素因数の和:1061

約数の個数: 32

約数和(自身を含む): 42162120

約数和(自身を除く): 21066208

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 181, 362, 724, 857, 1448, 1714, 3077, 3428, 6154, 6856, 12308, 14569, 24616, 29138, 58276, 116552, 155117, 310234, 620468, 1240936, 2636989, 5273978, 10547956, 21095912]

約数ペア:

[(1, 21095912), (2, 10547956), (4, 5273978), (8, 2636989), (17, 1240936), (34, 620468), (68, 310234), (136, 155117), (181, 116552), (362, 58276), (724, 29138), (857, 24616), (1448, 14569), (1714, 12308), (3077, 6856), (3428, 6154)]